2010 - 00155 - plumbing - Laserfiche WebLink

Home Browse Search

Willie Gibbs From: MARK JERDE [markjerde@rmmech.com] Sent: Thursday, March 25, 2010 4:06 PM To: Willie Gibbs Subject: Fw: Plan No. 101321 Harvest Moon Co op Remodel • From: Sawyer, Scott (DLI) <Scott.Sawyer@state.mn.us> Subject: Plan No. 101321 Harvest Moon Co op Remodel To: "Jerde, Mark" <markjerde@rmmech.com> Date: Thursday, March 25, 2010, 11:58 AM Mark, I have approved the plans for Harvest Moon Co-op Remodel in Orono and am sending this email to you with a draft copy of my review comments.Perhaps the local official will deem this list of comments sufficient to proceed.I am submitting my comments for typing of the formal approval letter,which should be mailed to you next week.Please review the official letter when it arrives in case there are any differences(although I don't expect my comments to change). My comments are as follows: PLUMBING-PROJECT NAME:Harvest Moon Co-op Remodel Plan No. 101321 REQUIREMENT(S): 1. Verify that the existing water supply and waste systems are sized to accommodate the added fixtures(see Minnesota Rules,part 4715.3700 and part 4715.2310).Please note that the co-op adds 108 drainage fixture units to the existing 4-inch sanitary piping and a maximum of 160 drainage fixture units can be served by a 4-inch sanitary branch. 2. Changes in direction in drainage piping must be made by appropriate use of wyes and bends. Sanitary tees are not allowed where the direction of flow changes from either vertical to horizontal or horizontal to horizontal(see Minnesota Rules,part 4715.2410). 3. The minimum size for underground waste pipe shall be 2 inches in diameter(see Minnesota Rules,part 4715.2350). 4. Double wyes may not be used for drainage fittings in the horizontal position(see Minnesota Rules,part 4715.2420,subpart 3). Proper pipe slope cannot be maintained on both of the offset branches.Verify that a double wye fitting in the horizontal position is not used for the sanitary branches serving the floor 1